Modelling of anisotropic hardening behavior for the fracture prediction in high strength steel line pipes

Iob, Francesco; Campanelli, Flavia; Coppola, Tommaso

doi:10.1016/j.engfracmech.2015.04.030

Cited by 21 publications

(5 citation statements)

References 12 publications

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“…Rahmatollah Ghajar [13] et al investigated the effect of anisotropy, triaxiality factor, and Lode angle on failure. F. Iob [14] et al provided a model with 3D description of anisotropic behavior to represent ductile hardening in all directions up to fracture. Tanguy B.…”

Section: State-of-the-artmentioning

confidence: 99%

High-Temperature Ductile Damage Behavior and Modeling of X100 Pipeline Steel

Fan¹,

Wang²,

Liang³

et al. 2019

JESTR

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Induction heat-bended pipes used in oil and gas pipelines are commonly manufactured by heating-bending techniques, and ductile fractures related to large deformation easily occur in the heating-bending manufacturing process. This study investigated the ductile damage behavior and modeling of X100 pipeline steel to reveal the evolution of ductile damage fracture of high-strength pipeline steel at high temperatures. Three methods, namely, Gleeble tensile, separation Hopkinson pressure bar (SHPB), and MTS quasi-static notch tensile tests, were performed at room and high temperatures for the analysis of the characteristics of flow stress and failure strain of X100 pipeline steel. The Johnson-Cook model was used for the establishment of the damage constitutive model of X100 pipeline steel, and its accuracy and reliability were verified by experimental data. Results show that strain rate enhancement and high-temperature softening effect are significant. The failure strain of X100 pipeline steel is positively correlated with temperature and negatively correlated with stress triaxiality and strain rate. The established constitutive model can accurately describe the high-temperature plastic deformation and damage evolution behavior of X100 pipeline steel. This study provides a foundation for the prediction of damage and failure in heating-bending process.

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Section: State-of-the-artmentioning

confidence: 99%

High-Temperature Ductile Damage Behavior and Modeling of X100 Pipeline Steel

Fan¹,

Wang²,

Liang³

et al. 2019

JESTR

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“…Ductile fracture of metallic materials is affected not only by the stress state but also by other loading conditions, including strain rate, temperature [12,[20][21][22] and loading directions [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the ductile fracture of high-strength pipeline steels using a partial anisotropic damage mechanics model

Shen

Münstermann

Lian

2020

Engineering Fracture Mechanics

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“…The scope of this paper is to describe a wide and innovative mechanical assessment, performed on large diameter spiral line pipes for gas transportation. The aim of such work is to validate a new plasticity model, developed at Rina Consulting-Centro Sviluppo Materiali [14][15][16]. Subsequent to mechanical tests, fracture surfaces and the section of selected specimens, were analyzed for voidsand inclusions-counting.…”

Section: Introductionmentioning

confidence: 99%

Influence of Mechanical Anisotropy on Micro-Voids and Ductile Fracture Onset and Evolution in High-Strength Low Alloyed Steels

Iob

Cortese

Schino

et al. 2019

Metals

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In this paper results of a wide and innovative mechanical assessment, that was performedon large diameter spiral line pipes for gas transportation, are reported. The anisotropic materialhardening has been characterized by tensile (smooth and notched specimens), torsion, andcompression tests. Tests were performed in the pipe of the pipe with specimens machined alongseveral orientations, taking into account the pipe through thickness direction. The influence ofdifferent triaxiality stress states on anisotropic behavior of the material have also been analyzed bymeans of tensile tests on notched specimens. After the experiments, the material was assessed bymeasuring the void distribution on the material as is, and on many deformed and fracturedspecimens, including tensile tests at different triaxiality, and torsion tests. The results showed that insuch a class of materials, the experimental void fraction is fully negligible and not related to theapplied plastic strain, even at the fracture proximity. As a consequence it can be concluded that, theplastic softening hypothesis may be dropped and damage due to void evolution hypothesis is notadequate.

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Modelling of anisotropic hardening behavior for the fracture prediction in high strength steel line pipes

Cited by 21 publications

References 12 publications

High-Temperature Ductile Damage Behavior and Modeling of X100 Pipeline Steel

High-Temperature Ductile Damage Behavior and Modeling of X100 Pipeline Steel

Investigation on the ductile fracture of high-strength pipeline steels using a partial anisotropic damage mechanics model

Influence of Mechanical Anisotropy on Micro-Voids and Ductile Fracture Onset and Evolution in High-Strength Low Alloyed Steels

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